Home / 38,155.82-52,657.68-21,161.61

Finding the Fourth Proportional to 38,155.82, 52,657.68 and 21,161.61

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Solution

The fourth proportional to 38,155.82, 52,657.68 and 21,161.61 is: 29,204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,155.82 : 52,657.68 = 21,161.61 : x
  2. Step 2: Convert to fraction form
    38,155.82/52,657.68 = 21,161.61/x
  3. Step 3: Cross multiply
    38,155.82x = 52,657.68 × 21,161.61
  4. Step 4: Simplify right side
    38,155.82x = 1,114,321,287.66
  5. Step 5: Solve for x
    x = 1,114,321,287.66/38,155.82
  6. Step 6: Final answer
    x = 29,204.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.